不同产地沉香结香率及醇提取物含量变异分析

为研究不同地点沉香样品的结香率和醇提取物含量的变异规律，对化州市和越南的6年生沉香样品做通体结香处理，利用荧光光谱成像技术测定样品的结香率，根据中国药典2010年版的醇提取物含量测定方法测定样品的醇提取物含量。结果表明：化州样品中结香率最高为1.85%，最低0.31%，变异系数40.95%；越南样品中结香率最高达到5.33%，最低0.45%，变异系数46.92%。化州样品中醇提取物含量最高为26.67%，最低6.13%，变异系数48.63%；越南样品中醇提取物含量最高达到52.54%，最低9.41%，变异系数38.55%。两地样品的结香率差异极显著(P < 0.01)，醇提取物含量差异显著(P < 0.05)。两地沉香样品的结香率和醇提取物含量的个体间差异均十分明显，越南样品的结香率极显著高于化州样品，越南样品的醇提取物含量显著高于化州样品。

Variation of Agarwood Formation Rate and Ethanol Extract Content of Agarwood from Different Origins

Research the variation characteristics of agarwood formation rate and ethanol extract content of agarwood samples cultivated in different places. The whole-tree agarwood inducing technique was used for six-year-old agarwood tree samples cultivated in Huazhou city and Vietnam. Fluorenscence spectral imaging technique was used to measure the agarwood formation rate. The ethanol extract content has been determined according to ethanol extract methods of Chinese Pharmacopoeia (2010) standard. The findings indicated that the maximum value of agarwood formation rate of Huazhou samples was 1.85%, the minimum value was 0.31%, and the variation coefficient was 40.95%. The maximum value of agarwood formation rate of Vietnam samples was 5.33%, the minimum value was 0.45%, and the variation coefficient was 46.92%. The maximum value of agarwood ethanol extract content of Huazhou samples was 26.67%, the minimum value was 6.13%, and the variation coefficient was 48.63%. The maximum value of ethanol extract content of Vietnam samples was 52.54%, the minimum value was 9.41%, and the variation coefficient was 38.55%. There have a high significant difference of agarwood formation rate between Huazhou samples and Vietnam samples, and the P-value < 0.01. There have a significant difference of agarwood oil content, and the P-value < 0.05. There were obvious individual differences in the agarwood formation rate and ethanol extract content. Agarwood formation rate of Vietnam samples were highly significant exceed Huazhou samples. Agarwood ethanol extract content of Vietnam samples were significant exceed Huazhou samples.